Package com.jhlabs.image

Class RotateFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.TransformFilter

com.jhlabs.image.RotateFilter

All Implemented Interfaces:

java.awt.image.BufferedImageOp, java.lang.Cloneable

public class RotateFilter
extends TransformFilter

A filter which rotates an image. These days this is easier done with Java2D, but this filter remains.

Field Summary

Fields inherited from class com.jhlabs.image.TransformFilter

BILINEAR, CLAMP, edgeAction, interpolation, NEAREST_NEIGHBOUR, originalSpace, RGB_CLAMP, transformedSpace, WRAP, ZERO

Constructor Summary

Constructors

Constructor	Description
RotateFilter()	Construct a RotateFilter.
RotateFilter(float angle)	Construct a RotateFilter.
RotateFilter(float angle, boolean resize)	Construct a RotateFilter.

Method Summary

Modifier and Type	Method	Description
float	getAngle()	Returns the angle of rotation.
void	setAngle(float angle)	Specifies the angle of rotation.
java.lang.String	toString()
protected void	transformInverse(int x, int y, float[] out)	Inverse transform a point.
protected void	transformSpace(java.awt.Rectangle rect)	Forward transform a rectangle.

Methods inherited from class com.jhlabs.image.TransformFilter

filter, filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB, stringToColor

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RotateFilter

public RotateFilter()

Construct a RotateFilter.

RotateFilter

public RotateFilter(float angle)

Construct a RotateFilter.

Parameters:

angle - the angle to rotate

RotateFilter

public RotateFilter(float angle,
                    boolean resize)

Construct a RotateFilter.

Parameters:

angle - the angle to rotate

resize - true if the output image should be resized

Method Detail

setAngle

public void setAngle(float angle)

Specifies the angle of rotation.

Parameters:

angle - the angle of rotation.

See Also:

getAngle()

getAngle

public float getAngle()

Returns the angle of rotation.

Returns:

the angle of rotation.

See Also:

setAngle(float)

transformSpace

protected void transformSpace(java.awt.Rectangle rect)

Description copied from class: TransformFilter

Forward transform a rectangle. Used to determine the size of the output image.

Overrides:

transformSpace in class TransformFilter

Parameters:

rect - the rectangle to transform

transformInverse

protected void transformInverse(int x,
                                int y,
                                float[] out)

Description copied from class: TransformFilter

Inverse transform a point. This method needs to be overriden by all subclasses.

Specified by:

transformInverse in class TransformFilter

Parameters:

x - the X position of the pixel in the output image

y - the Y position of the pixel in the output image

out - the position of the pixel in the input image

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object